The Tech Report website has been running an experiment to see how long some typical consumer grade drives will actually last. An intro:
The latest update, in Feb, 2014:
By far the most telling takeaway thus far is the fact that all the drives have endured 600TB of writes without dying. That's an awful lot of data—well over 300GB per day for five years—and far more than typical PC users are ever likely to write to their drives. Even the most demanding power users would have a hard time pushing the endurance limits of these SSDs.
So far, the MLC drives have been exemplary. Their flash has suffered relatively few failures, and two drives remain completely unscathed. Our lone TLC offering continues to retire bad blocks at a steady pace, but the Samsung 840 Series still has plenty of flash in reserve. Apart from the unrecoverable errors we encountered after 300TB of writes, its performance has been solid overall.
At this rate, even the 840 Series may reach a petabyte of writes before burning out. The others are on track to cross that threshold easily, and I expect we'll be waiting a long time for their eventual demise. With that in mind, it might be a little while until our next update. We've already established that modern SSDs have more than enough endurance for typical consumer workloads, and at this point, we're just reporting more of the same. Besides, I'm fresh out of ideas for how to pose these things for pictures.
Apart from the cost, I think SSD's would do just fine in a dvr. I think dish should offer a 'premium' line of dvrs with SSds for people who are willing to pay for a silent drive for their bedroom or home theatre.